|About this Abstract
||Materials Science & Technology 2012
||MS&T'12 Poster Session
||J3: Joining of Large-scaled Silicon Nitride Ceramics
||Mikinori Hotta, Naoki Kondo, Hideki Kita, Tatsuki Ohji
|On-Site Speaker (Planned)
In order to use ceramics as large components for manufacturing plant, it is necessary to establish technology that solves the problems of high cost of production and mechanical reliability of components. Joining of ceramics, including Si3N4, is important technique for producing large or complex ceramic components, improving reliability of ceramic parts and repairing damaged ceramic parts. For joining of the large components, local heating is cost-effective fabrication, because large-scaled furnace that places the whole components is not required. In this study, joint of Si3N4 long pipe was prepared by local heating. The specimen was liquid-phase sintered Si3N4 with Y2O3 and Al2O3 additives. The size of the specimen was 28 mm in diameter and 1000 mm in length. Joining was achieved by heating near the joint area with horizontal electric furnace at mechanical pressure of up to 5 MPa in nitrogen atmosphere.
||Definite: A CD-only volume